After taking the JB4 out of my car (this is assuming you read the thread I linked), I bought a Bavarian Tech cable. My car was kind of running like **** even with the JB4 out, so I eventually just checked every code that was stored.

I had codes coming out of every orifice...Codes from the transfer case.The transmission.The engine.Etc.

Thinking it would be like all of the other times (where I would just delete the misfire code and the car would run like normal), I just deleted them. The car ran like normal after that.

I bring this up, because maybe those codes play a roll in what's happening now.
I did take a picture of each code before I deleted them. However, those are on my old phone, which doesn't have a charger.

However, ever since then, the only code I've gotten was a cyl6 misfire.

I want to take it to BMW. But, I can't go without a car.

You had all those codes because your voltage dropped below about 10 volts at some point. That'll light up everything including the ABS/DTC/DSC Christmas tree.